Bug 20504
| Summary: | iostream + pthreads = breakage (already fixed in rawhide) | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Need Real Name <oneill> |
| Component: | libstdc++ | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2000-11-08 01:14:23 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
We will issue an official errata once a couple of outstanding issues are resolved. In the meantime use the rawhide packages, the official errata will be their successor. The bug is still (or again) there in gcc-2.96-65 Is there some way to get 2.96-60 somewhere? I was struggling with the same problem. An awkward fix is calling unlock(cout) after all writes. No, the bug is not in libstdc++-2.96-65. Make sure you upgrade libstdc++ and libstdc++-devel as well as gcc*-2.96-65*. |
The enclosed code hangs after printing "In parent" with *-2.96-54, but works fine with *-2.96-60. Since no compiler update has been issued for Red Hat 7, I figured I should report it as a bug. M.E.O. Enc. rh7% cat buggy.cc #include <pthread.h> #include <iostream> void * child_fn(void *) { cout << "In child" << endl; return 0; } int main() { cout << "In parent" << endl; pthread_t child_tid; if (pthread_create(&child_tid, 0, child_fn, 0) == 0) { pthread_join(child_tid, 0); } } rh7% g++ -D_REENTRANT -Wall -o buggy buggy.cc -lpthread rh7% buggy In parent ^C rh7%